Key information relevant to the recruitment process for the
overall study, such as dates of the recruitment period and locations

Men and women at least 18 years of age with genotype 1 hepatitis C virus (HCV) and human immunodeficiency virus (HIV) coinfection and naive to previous HCV treatment were recruited for participation in this study.

Pre-Assignment Details

Significant events and approaches for the overall study
following participant enrollment, but prior to group assignment

No text entered.

Reporting Groups

Description

NTZ/PEG/RBV

Participants received nitazoxanide (NTZ) alone for 4 weeks followed by up to 48 weeks of NTZ with pegylated interferon (PEG) and ribavirin (RBV). Participants who did not achieve early virologic response (EVR) at Week 16 or had detectable hepatitis C virus (HCV) viral load at Week 28 discontinued treatment.

Participant Flow: Overall Study

NTZ/PEG/RBV

STARTED

67
[1]

COMPLETED Week 16

61
[2]

COMPLETED

55
[3]

NOT COMPLETED

12

Adverse Event

1

Physician Decision

2

Withdrawal by Subject

3

Lost to Follow-up

4

Protocol Violation

2

[1]

68 participants enrolled, one was found to have been ineligible and was excluded.

[2]

Completed 16 weeks of the study (the primary endpoint time point). The study continued to Week 76.

Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

No text entered.

Reporting Groups

Description

NTZ/PEG/RBV

Participants received nitazoxanide (NTZ) alone for 4 weeks followed by up to 48 weeks of NTZ with pegylated interferon (PEG) and ribavirin (RBV). Participants who did not achieve early virologic response (EVR) at Week 16 or had detectable hepatitis C virus (HCV) viral load at Week 28 discontinued treatment.

A blood sample was drawn to determine the HIV viral load by local laboratories. HIV viral load was categorized as <lower limit of quantification (undetectable) of the assay or >=lower limit of quantification of the assay (detectable). The assays used were bDNA assay (Versant HIV-1 RNA 3.0), Roche COBAS AmpliPrp/Taqman HIV-1 assay and Abbott RealTime HIV-1 assay.

Sustained virologic response (SVR) was defined as undetectable HCV viral load (<43 IU/ml) at 24 weeks after treatment discontinuation, where 43 is the lower limit of quantification of the assay (Cobas AmpliPrep/Taqman HCV Test). Participants who failed to achieve EVR or had detectable HCV RNA at Week 28 and per protocol discontinued study, and participants without HCV RNA from 24 weeks after treatment discontinuation, were considered non-responders.

Time Frame

24 weeks after treatment discontinuation

Safety Issue

No

Population Description

Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

All participants who enrolled, except one who was found to have been ineligible after entry. The analysis was intention to treat wherein participants who dropped out early without HCV RNA from 24 weeks after treatment discontinuation, non-EVRs and those with detectable HCV RNA at Week 28, were considered non-responders.

Reporting Groups

Description

NTZ/PEG/RBV

Participants received nitazoxanide (NTZ) alone for 4 weeks followed by up to 48 weeks of NTZ with pegylated interferon (PEG) and ribavirin (RBV). Participants who did not achieve early virologic response (EVR) at Week 16 or had detectable hepatitis C virus (HCV) viral load at Week 28 discontinued treatment.